| 摘要 |
[Problem] To provide a thermoplastic elastomer composition for foaming, whichhassufficientfoamabilityandprovidesamoldedarticle having good appearance. [Solution to Problem] A thermoplastic elastomer composition for foaming, which comprises 10 to 40% by weight of a partially or completely crosslinked ethylene/± -olefin/non-conjugated polyene copolymer rubber (A) comprising ethylene, an ±-olefin of 3 to 20 carbon atoms and a non-conjugated polyene, 3 to 33% by weight of an ethylene/±-olefin copolymer (B) comprising ethylene and an ±-olefin of 3 to 20 carbon atoms, 10 to 40% by weight of polypropylene (C) havingameltingpoint, as determined by differential scanning calorimetry (DSC), of 40 to 170°C, 10 to 45% by weight of a softener (D) for rubbers, and at least one substance selected from an isotactic propylene-based polymer (E-a) in an amount of 1 to 30% by weight and a syndiotactic ±-olefin-based copolymer (E-b) in an amount of 1 to 20% by weight, with the proviso that the total amount of the components (A), (B), (C), (D), (E-a) and (E-b) is 100% by weight. |
